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This commit is contained in:
Timur A. Fatkhullin
2025-07-10 12:03:50 +03:00
parent a35e72d166
commit 4d13c86e3d
5 changed files with 209 additions and 243 deletions
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74
cxx/mcc_mount_astro_erfa.h
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@@ -21,6 +21,12 @@ namespace mcc::astrom::erfa
#include <erfa.h>
#include <erfam.h>
/* A concept for ERFA-library compatible type to represent anglular quantities */
template <typename T>
concept mcc_erfa_angle_t = std::constructible_from<T, double> && std::convertible_to<T, double>;
template <mcc_erfa_angle_t AngleT = MccAngle>
class MccMountAstromEngineERFA
{
protected:
@@ -34,7 +40,7 @@ protected:
"unacceptable year"};
public:
enum engine_err_t : size_t {
enum error_t : size_t {
ERROR_OK = 0,
ERROR_INVALID_INPUT_ARG,
ERROR_JULDATE_INVALID_YEAR,
@@ -62,9 +68,11 @@ public:
double wavelength = 0.55; // observed wavelength in mkm
MccAngle lat = "00:00:00"_dms; // site latitude
MccAngle lon = "00:00:00"_dms; // site longitude
double elev = 0.0; // site elevation (in meters)
AngleT lat = "00:00:00"_dms; // site latitude
AngleT lon = "00:00:00"_dms; // site longitude
// MccAngle lat = "00:00:00"_dms; // site latitude
// MccAngle lon = "00:00:00"_dms; // site longitude
double elev = 0.0; // site elevation (in meters)
mcc::astrom::iers::MccLeapSeconds _leapSeconds{};
mcc::astrom::iers::MccIersBulletinA _bulletinA{};
@@ -77,12 +85,20 @@ public:
double mjd{51544.5}; // J2000.0
};
typedef MccAngle coord_t;
// typedef MccAngle coord_t;
typedef MccAngle sideral_time_t;
// typedef juldate_t terr_time_t;
typedef MccAngle pa_t;
typedef MccAngle eo_t;
// typedef MccAngle sideral_time_t;
// typedef MccAngle pa_t;
// typedef MccAngle eo_t;
/* use of the same type fro representation of celestial and geodetic coordinates, celestial angles (e.g. P.A.),
* sideral time */
typedef AngleT coord_t;
typedef AngleT sideral_time_t;
typedef AngleT pa_t;
typedef AngleT eo_t;
struct refract_result_t {
double refa, refb;
@@ -110,7 +126,7 @@ public:
}
std::string errorString(engine_err_t err) const
std::string errorString(error_t err) const
{
return engineErrorString[err];
}
@@ -119,7 +135,7 @@ public:
// templated generic version
template <mcc::traits::mcc_systime_c TpT>
engine_err_t greg2jul(TpT time_point, juldate_t& juldate)
error_t greg2jul(TpT time_point, juldate_t& juldate)
{
using namespace std::literals::chrono_literals;
@@ -152,13 +168,13 @@ public:
return ERROR_OK;
}
engine_err_t greg2jul(time_point_t time_point, juldate_t& juldate)
error_t greg2jul(time_point_t time_point, juldate_t& juldate)
{
return greg2jul<time_point_t>(time_point, juldate);
}
engine_err_t terrestrialTime(juldate_t juldate, juldate_t& tt)
error_t terrestrialTime(juldate_t juldate, juldate_t& tt)
{
std::lock_guard lock{_stateMutex};
@@ -179,7 +195,7 @@ public:
}
engine_err_t apparentSiderTime(juldate_t juldate, sideral_time_t& gst, bool islocal = false)
error_t apparentSiderTime(juldate_t juldate, sideral_time_t& gst, bool islocal = false)
{
// std::lock_guard lock{_stateMutex};
@@ -227,7 +243,7 @@ public:
}
engine_err_t eqOrigins(juldate_t juldate, eo_t& eo)
error_t eqOrigins(juldate_t juldate, eo_t& eo)
{
juldate_t tt;
@@ -243,7 +259,7 @@ public:
/* atmospheric refraction-related methods */
engine_err_t refraction(refract_result_t& refr)
error_t refraction(refract_result_t& refr)
{
std::lock_guard lock{_stateMutex};
@@ -254,7 +270,7 @@ public:
}
engine_err_t refractCorrection(const coord_t& alt, const refract_result_t& ref_params, coord_t& corr)
error_t refractCorrection(const coord_t& alt, const refract_result_t& ref_params, coord_t& corr)
{
if (alt <= 0.0) {
corr = 35.4 / 60.0 * std::numbers::pi / 180.0; // 35.4 arcminutes
@@ -268,14 +284,14 @@ public:
/* coordinates conversional methods */
engine_err_t icrs2obs(coord_t ra,
coord_t dec,
juldate_t juldate,
coord_t& ra_app,
coord_t& dec_app,
coord_t& ha,
coord_t& az,
coord_t& alt)
error_t icrs2obs(coord_t ra,
coord_t dec,
juldate_t juldate,
coord_t& ra_app,
coord_t& dec_app,
coord_t& ha,
coord_t& az,
coord_t& alt)
{
std::lock_guard lock{_stateMutex};
@@ -316,7 +332,7 @@ public:
}
engine_err_t hadec2azalt(coord_t ha, coord_t dec, coord_t& az, coord_t& alt)
error_t hadec2azalt(coord_t ha, coord_t dec, coord_t& az, coord_t& alt)
{
std::lock_guard lock{_stateMutex};
@@ -329,7 +345,7 @@ public:
return ERROR_OK;
}
engine_err_t azalt2hadec(coord_t az, coord_t alt, coord_t& ha, coord_t& dec)
error_t azalt2hadec(coord_t az, coord_t alt, coord_t& ha, coord_t& dec)
{
std::lock_guard lock{_stateMutex};
@@ -344,7 +360,7 @@ public:
}
engine_err_t hadec2pa(coord_t ha, coord_t dec, pa_t& pa)
error_t hadec2pa(coord_t ha, coord_t dec, pa_t& pa)
{
std::lock_guard lock{_stateMutex};
@@ -386,4 +402,4 @@ protected:
} // namespace mcc::astrom::erfa
static_assert(mcc::traits::mcc_astrom_engine_c<mcc::astrom::erfa::MccMountAstromEngineERFA>, "");
static_assert(mcc::traits::mcc_astrom_engine_c<mcc::astrom::erfa::MccMountAstromEngineERFA<>>, "");